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CBSE /Class 9
Science MCQ Based On Sound introduction
Our free online Science test quiz for Class 9, CBSE will assist you to improve your Science skills on every concept in a fun interactive way.
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CBSE Class 9 Science Sound introduction
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This region is created when a vibrating object moves backward.
Read all the options carefully.
Speed can be defined as total distance divided by total time.
What is the common term for it?
Sound waves can travel through a medium like solid, liquid or gas.
use the formula of wavelength.
It produces sensation of hearing.
When a vibrating object moves forward, it pushes and compresses the air in front of it.
What is the relation between speed, wavelength and frequency?
It is a space that is completely empty of all substances.
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